<style>
        *{margin:0;padding:0;box-sizing:border-box;font-family:system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;}
        body{background:#fff;color:#1e1e1e;line-height:1.5;}
        .container{max-width:1280px;margin:0 auto;padding:0 20px;}
        :root{--primary:#f90;--primary-dark:#e68a00;--primary-light:#fff3e0;--gold:#fc0;}
        .btn{display:inline-block;background:var(--primary);color:#fff;font-weight:600;padding:12px 28px;border-radius:40px;text-decoration:none;transition:0.2s;border:none;cursor:pointer;font-size:1.1rem;box-shadow:0 4px 12px rgba(255,153,0,0.3);}
        .btn:hover{background:var(--primary-dark);transform:translateY(-2px);}
        .btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary);box-shadow:none;}
        .btn-outline:hover{background:var(--primary);color:#fff;}
        .header{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,0.05);position:sticky;top:0;z-index:100;}
        .header .container{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;}
        .logo{display:flex;align-items:center;gap:10px;font-size:1.8rem;font-weight:700;color:#1e1e1e;text-decoration:none;}
        .logo-icon{background:var(--primary);width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;font-weight:700;}
        .nav{display:flex;gap:28px;font-weight:500;}
        .nav a{text-decoration:none;color:#333;font-size:1.1rem;}
        .nav a:hover{color:var(--primary);}
        .footer{background:#1e1e1e;color:#aaa;padding:48px 0 24px;margin-top:60px;}
        .footer-content{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}
        .footer h4{color:#fff;margin-bottom:16px;font-size:1.2rem;}
        .footer ul{list-style:none;}
        .footer a{color:#aaa;text-decoration:none;}
        .footer a:hover{color:var(--primary);}
        .copyright{text-align:center;padding-top:32px;margin-top:32px;border-top:1px solid #333;}
        h1{font-size:2.8rem;font-weight:700;margin-bottom:20px;}
        h2{font-size:2.2rem;font-weight:700;margin-bottom:32px;text-align:center;}
        h3{font-size:1.5rem;font-weight:600;margin-bottom:16px;}
        .section{padding:64px 0;}
        .bg-light{background:var(--primary-light);}
        .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
        .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
        .download-card{background:#fff;padding:32px 24px;border-radius:20px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,0.05);}
        .download-icon{background:var(--primary);width:72px;height:72px;border-radius:20px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:#fff;font-size:36px;}
        .version-info{color:#666;margin:12px 0;font-size:0.95rem;}
        .faq-item{border-bottom:1px solid #eee;}
        .faq-question{width:100%;text-align:left;padding:20px 0;font-size:1.2rem;font-weight:500;background:none;border:none;cursor:pointer;display:flex;justify-content:space-between;}
        .faq-answer{padding:0 0 20px 0;color:#555;font-size:1.1rem;display:none;}
        .faq-item.active .faq-answer{display:block;}
        .step-card{text-align:center;padding:24px;}
        .step-num{background:var(--primary);width:56px;height:56px;border-radius:28px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:#fff;font-size:24px;font-weight:700;}
        .cta-section{background:linear-gradient(135deg,var(--primary) 0%,#ffb84d 100%);padding:56px;border-radius:32px;color:#fff;}
        .nav-links{display:flex;gap:16px;justify-content:center;margin-top:32px;}
        @media (max-width:768px){
            .header .container{flex-wrap:wrap;}
            .nav{order:3;width:100%;justify-content:center;margin-top:12px;gap:16px;}
            h1{font-size:2rem;} h2{font-size:1.8rem;}
            .grid-3,.grid-4{grid-template-columns:1fr;}
            .footer-content{grid-template-columns:1fr;}
        }
    </style>